Edit Book: A new tool to filter style information (Tools->Filter style information). Useful to easily remove some CSS properties from the entire book.DOCX Input: Add support for cross references. Cross references that are used to insert hyperlinks are now converted into hyperlinks in the output document. Features to insert paragraph/page numbers are not supported.Add support for viewing kepub files in the calibre viewer, by treating them as plain epub filesEdit book: In the Insert Link tool show a few words of text alongside the location anchor name, to make it easier to know what a location isManage user dictionaries: Allow copying all selected words by right clicking them and choosing ´Copy to clipboard´.Closes tickets: 1315340

Content server: Make .ibook format files available in OPDS feedsEdit book: Allow copying the list of errors from the Check Book tool to the clipboard by right clicking on the list of errorsBook polishing: If the books being polished have an ORIGINAL_EPUB/AZW3 format, warn the user that polishing will use it as the source and ask for confirmation.Closes tickets: 1316158